Cheap flights from Seattle to Ontario (SEA - ONT)

Flight FAQs

From Seattle to Ontario

What airports do I use to fly from Seattle to Ontario?

Booking a flight from Seattle/Tacoma Intl (SEA) to Ontario (ONT) is your only option if you wish to fly from Seattle to Ontario. On a typical day, there are 11 flights from Seattle/Tacoma Intl to Ontario, all of which are around 2h 30m for a nonstop flight. You can also purchase a plane ticket from 9 airlines when you book a flight from Seattle/Tacoma Intl to Ontario.

Which airlines flying from Seattle/Tacoma Intl to Ontario have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like Alaska Airlines, Delta, and Juneyao Airlines flying from Seattle/Tacoma Intl to Ontario have implemented new flexible cancellation policies.

Can I find flights from Seattle to Ontario for under $200 on Cheapflights?

Yes, there are multiple flights from Seattle to Ontario for under $200. The cheapest flight booked recently is on Multiple Airlines for just $147, but on average you can expect to pay $166.

Are there nonstop flights from Seattle to Ontario for under $200 on Cheapflights?

Cheapflights has at least 20 direct flights from Seattle to Ontario under $200. A good price for a nonstop flight from Seattle to Ontario is less than $194.

Are there last-minute flights available from Seattle to Ontario for under $300?

There are currently 20+ open flights from Seattle to Ontario within the next 7 days for less than $300.

What days are nonstop flights available from Seattle to Ontario?

You can find nonstop flights on the following days: Thursday.

How popular is this Seattle to Ontario flight route?

This flight path from Seattle/Tacoma Intl to Ontario was viewed by 54 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

How many flights depart from Seattle to Ontario on average per day?

Travelers can expect 2 flights from Seattle to Ontario on average per day.
Evening (6pm - Midnight) - 100% of flight departures

How long is the flight from Seattle to Ontario?

A quick flight from Seattle to Ontario can take about 2h 41m. Frontier provides one of the quickest options available for as low as $153. The distance from Seattle to Ontario is about 962 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Seattle to Ontario round-trip?

Our cheapest airline available from Seattle to Ontario is Frontier. Our recent data shows that you can find tickets from as low as $153 on this airline. An additional option worth looking into is Alaska Airlines, starting at $176. Frontier is priced at 37% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Seattle to Ontario one-way?

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $76. Users have also found prices from $89 and $92 on Delta and Alaska Airlines, respectively.

What are the cheapest flights from Seattle to Ontario?

Looking at all options, your cheapest flight can be booked for $89. While the most popular route (Seattle/Tacoma Intl - Ontario) can be booked for $147 on average our data indicates $455 when flying from Seattle to Ontario.

What are the most reliable airlines from Seattle to Ontario?

Before booking your flight to Ontario from Seattle, check out the most reliable airlines to get you to your destination on time: KLM (97%), Virgin Atlantic (94%), SkyWest Airlines( 92%).

What are the most popular airlines that fly from Seattle to Ontario?

American Airlines, Alaska Airlines and Delta are the most popular airlines when flying from Seattle to Ontario.